I used to think of myself as fairly computer literate until going from
XP/Office 2003 to Vista/Office 2007. I have read through this thread and this
is what I came up with. It seems to have worked.

Close Outlook 2007
In Control Panel: Mail / Profiles / Show Profiles
Outlook (only profile shown)
Add
Outlook 2007 (my new profile name)
Answer questions to set up email account(s) for this profile. Once new
profile is added, change the name under “Always use this profile” to new name
(Outlook 2007).

Open Outlook 2007
In Outlook: File / Data File Management / Data Files tab
Change default to old folders
Close
Your old mail, contacts extra should now show

Right Click on a Contact Folder
Click on properties
Click on Outlook Address Book Tab
Check Show this folder as an e-mail Address